Date & Time: 03/22/2008 13:30Location: Baltimore, MDAircraft Type: Boeing 757-2B7 Registration: N921UWOperator: US AirwaysPhase: CruiseDamage: SubstantialInjuries & Fatalities: NoneDescription: While at 27,000 feet, a 5×7 foot section of the left wing panel came off the aircraft, striking and breaking the outer layer of glass of a cabin window approximately 45 miles from Baltimore